Brick-machine



(No Model.) Sheets-Sheet 1.'

. a 2 J. W. & R. 0. PENFIELD. BRICK MAGHINE.

No. 426,315. Patented Apr. 22, 1890.

SWZPeIa/li.

(No Model.) 2 Sheets-Sheet 2.

r J. W. 8v R. G. PBNPIELD.

BRICK MACHINE.

No. 426,315. W Patented Apr. 22 1890.

UNITED STATES PAT NT OFFICE.

JAMES WV. PENFIELD AND RAYMOND O. PENFIELD, OF VVILLOUGHBY, OHIO.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 426,315, dated April22, 1890. Application filed January 13, 1890. Serial No. 336,844. (Nomodel.)

To all whom it may concern:

Be it known that we, JAMES WV. PENFIELD and RAYMOND O. PENFIELD, ofWilloughby, in the county of Lake and State of Ohio, have inventedcertain new and useful Improvements in Brick or Tile Machines; and we dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use the same.

Our invention relates to improvements in brick or tile machines; and itconsists in certain features of construction and combination of partshereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective. Fig. 2is an enlarged elevation in section in detail. Fig. 3 is a plan indetail of pitman 9. Fig. 4 is an elevation in detail of locking-frame,hereinafter described. Fig. 5 is aview in perspective showing a portionof cross-bar E.

A represents an upright cylindrical pugging-box, in which operates theupright pugging-shaft B. This shaft is provided in the usual manner witha series of arms 13', for tempering the material and forcing the latterdownward, and is provided also with a curved arm B known as awiper,adapted to force the material through opening a into thecompression-chamber O, and a vertically-reciprocating plungeror piston 0operating in the compression-chamber for forcing the material throughgrate G into mold D, the latter be ing located directly under thegrating and resting on table D. a The empty molds are successivelyplaced upon the table at the rearward of the mold being filled, theempty mold, as it is moved forward to a position under the grate,displacing the mold already filled. For thus shifting the mold isprovided rock-shaft cl, having an arm (not shown) that connects withpitman F, for actuating the rock-shaft. Shaft d is provided withrock-arm d, the latter bearing roller 0?, this roller being adapted toengage the rear side of the empty mold.

The mechanism thus far described and the co-operating devices foractuating the movable parts are in common use, and are so well knownthat it is not considered necessary further to describe them, and moreespecially as our improvements, hereinafter mentioned, and theirrelations to other parts of the machine will be readily understood.

I-Ieretofore it was found difficult to supply the compressing-chamberwith material, or at least to hold the material in the chamber whilepiston O was doing its work. To remedy this difficulty we provide asfollows: First, the forward section of the bottom plate A of thepugging-box is offset downward, as shown, thus securing a larger openinginto the compressing-cl1a1nber than would otherwise be had, whereby thematerial is more readily forced into the chamber. Resting and operatingupon the depressed section of plate A is lateral bar E, this bar havingan intermittently -reciprocating movement forward and back, the rearwardposition of the bar being shown in solid lines and the forward positionof the bar being shown in dotted lines, Fig. 2. Vhile the wiper issweeping past opening a bar E remains at rest in its rearward position,and just as the sweeper has passed the orifice bar E is advanced to itsforward position, thus forcing into the com pression-chamber thematerial that, partly by gravity and partly by the action of the wiper,had been massed in front of bar E, the latter maintaining its forwardposition and holding the material in chamber C while piston C is doingits work. lVith such construction the difficulty aforesaid of supplyingchamber O with material and holding the material in the chamber whilesuch material is being pressed into the mold is entirely overcome. Foractuatin g bar E is provided an oscillating frame, (shown more clearlyin Fig. 4,) this frame comprising axial trunnions G, side arms G,cross-bar G and depending wrist G ShaftB extends below the pugging-box,where it is provided with crank b, the latter having wrist b, and thetwo wrists Z) and G being connected by means of pitman g. This pitman ismade in two sections or halves bolted together, as shown in Fig. 3, thepitman having a slot g in which operates wrist Z) To and between theprongs of the forward end of the pitman is pivoted box 9 the bore ofthis box fitting wrist G The upper extremes of arms G are connected, bymeans of rods e, with the extremes of bar E, rods c extending looselythrough holes in the approximately vertical section of plate A. Thethrow of the crank is greater than is required in actuating bar E;hence, slot- 9 of the pitman, whereby less than the full throw of thecrank is transmitted, and bar E is allowed to remain at rest for atimeat either extreme of its throw while the lost motion of wrist b in slotg is being taken up.

I-Ieretofore it was found extremely difficult, if not impossible, toprevent the material from being forced into the lower box of thepuggingshaft, the presence of such material in the box causing extraweaignecessitatin g frequent repairs and an occasional renewal of theparts. To overcome this difficulty we provide as follows: The lower boxH of the pugging-shaft has an upwardly-projecting hub h, and thepugging-shaft is provided directly above the box with collar I, thelatter having a depending rim 1;, that extends down outside hub h,

as shown in Fig. 2. This collar is usually shrunk onto the shaft, andhence no material, not even water, can pass between it and the shaft,and material could only enter the box by being forced up between the rim2' and the hub h, and this could not occur so long as drip-holes a arekept open. As a further safeguard hood J is provided, this hood beingshaped approximately as shown and inclosing hub h and collar I, the hoodbeing fastened to plate A and fitting shaft 13 as close as ispracticable. The hub 19 of the wiper is chambered to fit over the hood.Plate A has an upwardly-proj eotin g annular flange a, thatis adapted tofit an annular groove 19 of the wiper-hub, and the latter is intended tofit as close as may be to plate A without actual contact with the plate.Some of the softer material will find its wayfpast rib a and will becomepacked in between hood J and the hub of the wiper; but there is notforce enough brought to bear on the material to force it down betweenshaft B and the hood, and a little muddy water is all that reaches thusfar, audit is prevented from entering the box by means of the aforesaidcollar and depending rim and is readily disposed of through thedrip-hole. WVith such construction there is no difficulty whatever inkeeping the material out of the lower box, and hence the wear of thisbox is reduced to a minimum.

Heretofore the lower-front edge of the compression-box or a platefastened thereto has served to strike off the molds. lVith suchconstruction it was found extremely difficult, if not impracticable, tosecure a compact unbroken smooth top surface on the brick or tile; but,on the contrary, these surfaces were likely to be rough, broken, andfissured. We therefore provide a series of plates 0, overlapping eachother shinglefashioned, as shown, thus presenting a series of inclinedsurfaces that successively engage the material in striking off the mold.The front wall of the conveyer-box is chambered, as shown at c forintroducim some lubricant usuall s b 7 y water, and a series ofdrip-holes o are provided, these drip-holes leading from chamber 0 anddischarging into the recesses had between the different plates 0. Thefirst plate 0 strikes off the mold substantially as heretofore; butbetween the first and second plate 0 sufficient lubricant is introducedto slightly soften the surface of the brick and render the materialtougher, and hence the second plate 0 smooths down and compacts thematerial, and so on, and it is found that with usually three plates 0the surface of the brick maybe rendered smooth and compact and without abreak or fissure in the surface.

What we claim is 1. In a brick-machine, in combination, an uprightpugging-box, a compression-chamber, and a so-called wiper, adapted toforce the material fromsuch pugging-box into such compression-chamber, across-bar operating in the pugging-box and located next below the lineof the sweeper, such cross-bar having a reciprocating movement towardand from the compression-box, substantially as set forth.

2. In a brick-machine, in combination, upright pugging-box, wiper,compression-box, and cross-bar having an intermittently-reciprocatingmovement toward and from the compression-box, substantially asindicated, the bottom plate of the pugging-box having an offset ordepressed section adapted to accommodate such reciprocating cross-barbelow the line of the wiper, substantially as set forth.

3. In a brick-machine, in combination, upright pugging-box andpugging-shaft, a journal-box for the lower end of the puggingshaft, suchjournal-box having an upwardlyprojecting hub, and a collar rigidlymounted on the pugging-shaft next above the journalbox, such collarhaving a depending rim adapted to overlap and inclose the upper sectionof such journal-box, substantially as set forth.

4. In a brick-machine, in combination, upright pugging-box andpugging-shaft, collar mounted on the pugging-shaft, such collar having adepending rim, a journal-box for the pugging-shaft, such journal-boxprojecting above the bottom plate of the pugging-box into the concavityof such rimmed collar, and a hood fastened to the bottom plate of thepugging-box, such hood being adapted to fit the pugging-shaft and toinclose the flanged collar and adjacent section of the journal-box,substantially as set forth. I 5. In a brick-machine, in combination,upright puggin g-box and puggin g-shaf t, upwardly-projectingjournal-box and overlapping flanged collar, and hood inclosing suchcollar and opposing j ournal-box section, substantially as indicated,and a wiper mounted on the pugging-shaft next above such hood, suchwiper having a chambered hub adapted to inclose such hood, substantiallyas set forth.

(3. In a brick-machine, in combination, up-

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compression-box, substantially as indicated, of a crank mounted on thepugging-shaft, a swinging frame operatively connected with thereciprocating cross-bar, and a slotted pit- Inan connecting such crankand swinging frame, substantially as set forth.

In testimony whereof We sign this specifica tion, in the presence of twoWitnesses, this 4th day of December, 1889.

JAMES W. PENFIELD. RAYMOND O. PENFIELD. lVitnesses:

L. W. PENFIELD, W. W. WALLAoE.

